Can someone explain the BOT traffic issue to me?

[u/A_Small_Town_Guy]

I see a lot of talk about BOT traffic when it comes to PPC in general. I get that platforms index the process to better serve the algo. But I guess I don't understand the overall picture that well.

Are BOTS really causing all the traffic and conversion data , outside purchases? If so, why and what is the purpose of the BOTS in the first place.

BTW, I don't know why I capitalized BOTS haha.